[Completed]Brother Captain Stern - Grey Knight Hero

That's what makes it far too powerful, Mortis. And I don't think you're reading the skill info properly. ^^;

The effects of this power last until the pskyer moves, shoots, or uses another psychic power, although he can fight as normal in close combat.

The point is not to hold the bubble indefinitely, because that's just unbalanced to the highest degree. Ranged heroes should be able to counter him, but if there are other heroes present with Stern, they gain magic immunity, making it near impossible to displace him via damage.

damage yes, spells no.
its already been nerfed in the aoe and blocking out creeps for much much shorter time.
lets go with gentle nerfs so to get it to the right place, instead of overnerfing it into the ground
we have the time to do that